.main{
    width: 100%;
    height: 100%;
    background: #1592cc;
    position: relative;
    .three{
        width: 72px;
        height: 168px;
        line-height: 168px;
        text-align: center;
        font-size: 120px;
        color: #fff;
        position: absolute;
        left: 0;
        right: 0;
        top: 0;
        bottom: 0;
        margin: auto;
    }
}